壳聚糖/玉米醇溶蛋白-花色苷纳米颗粒复合膜的制备及其性能  

Preparation and Characterization of Chitosan/Zein-Anthocyanin Nanoparticles Composite Film

作　　者：李双健 邸清茹 龚敏慧 李思媛 周剑忠[1] 范琳琳[1] Li Shuangjian;Di Qingru;Gong Minhui;Li Siyuan;Zhou Jianzhong;Fan Linlin(Institute of Agro-Product Processing,Jiangsu Academy of Agricultural Sciences,Nanjing 210014)

机构地区：[1]江苏省农业科学院农产品加工研究所,南京210014

出　　处：《中国食品学报》2024年第6期213-222,共10页Journal of Chinese Institute Of Food Science and Technology

基　　金：江苏省现代农业(河蟹)产业技术体系质量安全与加工创新团队项目(JATS[2023]406);江苏省农业自主创新资金项目[CX(22)2026];江苏省重点研发计划重点项目(BE2020387)。

摘　　要：目的:开发一种负载玉米醇溶蛋白-花色苷纳米颗粒(体积分数5%和10%)作为增强剂和功能剂的壳聚糖/玉米醇溶蛋白-花色苷纳米颗粒复合膜,并研究玉米醇溶蛋白-花色苷纳米颗粒对薄膜的物理化学性质和结构属性的影响。结果:扫描电子显微镜(SEM)和X射线衍射(XRD)分析表明,玉米醇溶蛋白-花色苷纳米颗粒呈球形,粒径约为193~487 nm,与薄膜基体具有良好的相容性,并填充了薄膜基体的空隙,显著提高了薄膜的力学性能,使断裂伸长率从14.55%增到42.86%,抗拉强度从13.26 MPa增到36.86 MPa。此外,薄膜的抗氧化性能显著提升,DPPH和ABTS自由基清除活性分别从31.82%和31.07%提高到84.05%和79.17%。结论:玉米醇溶蛋白-花色苷纳米颗粒不仅可以提高壳聚糖膜的力学性能,而且通过负载玉米醇溶蛋白-花色苷纳米颗粒增强了薄膜的抗氧化性。Objective:This study aimed to develop a chitosan/zein-anthocyanin nanoparticle composite film loaded with zein-anthocyanin nanoparticles(volume fraction 5%and 10%)as enhancers and functional agents.The effects of zein-anthocyanin nanoparticles on the physicochemical and structural properties of films were investigated.Results:Scanning electron microscopy(SEM)and X-ray diffraction(XRD)analysis showed that the nanoparticles,which were spherical in shape and had a particle size of about 193-487 nm,had good compatibility with the film matrix and filled the void spaces in the film matrix,significantly improving the mechanical properties,making the elongation at break from 14.55% to 42.86%,tensile strength increased from 13.26 MPa to 36.86 MPa.In addition,the antioxidant properties of the films were also significantly improved,with the radical scavenging activities of DPPH and ABTS increased from 31.82% and 31.07% to 84.05% and 79.17%,respectively.Conclusion:Zein-anthocyanin nanoparticles can not only improve the mechanical properties of chitosan films,but also improve the antioxidant properties of the films by loading zein-anthocyanins nanoparticles.

关 键 词：纳米颗粒 花色苷 生物聚合膜 力学性能 抗氧化活性 

分 类 号：TS206.4[轻工技术与工程—食品科学]